Method test_anext_bad_await

Lib/test/test_asyncgen.py:785–804

(self)

            self.loop.run_until_complete(call_with_kwarg())

    def test_anext_bad_await(self):
        async def bad_awaitable():
            class BadAwaitable:
                def __await__(self):
                    return 42
            class MyAsyncIter:
                def __aiter__(self):
                    return self
                def __anext__(self):
                    return BadAwaitable()
            regex = r"__await__.*iterator"
            awaitable = anext(MyAsyncIter(), "default")
            with self.assertRaisesRegex(TypeError, regex):
                await awaitable
            awaitable = anext(MyAsyncIter())
            with self.assertRaisesRegex(TypeError, regex):
                await awaitable
            return "completed"
        result = self.loop.run_until_complete(bad_awaitable())
        self.assertEqual(result, "completed")

    async def check_anext_returning_iterator(self, aiter_class):
        awaitable = anext(aiter_class(), "default")